This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Geometry . en years of Geometry at Shagi ru own Krassotkin other versions cczero Geometry Photographs by Alexander Krassotkin taken Alexey Mogilevsky Konstantin Preobrazhensky producer
Page 2023 Free-images.com. All images are Public Domain